BoatsDart Sailboats Sb20

Dart Sailboats Sb20

Fractional Sloop · Lifting Keel · First built 2004

A high-performance lifting-keel sportboat with a massive sail-area-to-displacement ratio, formerly known as the Laser SB3

Designed by Tony Castro.

LOA
Beam
Draft (max)
Displacement
Ballast
Hull type
Lifting Keel

Is it for you?

Character

Where this design lands on the numbers a shopper trusts — read straight from her own ratios.

TrailerableBeam 2.15 m — inside the 2.55 m no-permit tow width across most of Europe, and the 2.59 m US and Canadian limit. About 685 kg of hull, so roughly 1,300 kg on a trailer: check that against your own towing rating.Ramp-launchableAbout 685 kg of hull, with a keel that raises or a draught shallow enough to float off a trailer — she can go back on the trailer at the ramp, not only into the water.
LivelySea-kindly

Her light displacement on a moderate beam gives 9 — a quick, lively motion that feels every wave.

Comfort ratio 9
CoastalBluewater

At 2.46 she sits above the 2.0 line — beamy for her weight, and happiest coastal.

Capsize screening 2.46
LightHeavy

115 — light for her waterline, so she is easily driven and quick to accelerate.

Displacement / length 115
EasygoingPowered-up

35.8 — a lot of sail for her weight; powered-up and eager, a real performer.

Sail area / displacement 35.8
TenderStiff

48% of her weight is ballast — stiff, standing up well to her sails.

Ballast 48%

Light and lively — happiest day-sailing and coastal-hopping in settled weather.

  • Narrower than ~75% of boats her size on file

Compared with 542 boats of the same type within a quarter of her length.

The record

Full specifications

The complete reference set — tap any figure to switch between metric and imperial.

Dimensions
Weights
Ballast / displacement
47.8%
Rig & sail area
Rig
Fractional Sloop
Ratios
SA / displacement
35.8
Displacement / length
114.8
Comfort ratio
9.3
Capsize screening
2.46
Hull speed
5.7 kn
Pounds / inch immersion
454
Hull
Hull type
Lifting Keel
Construction
FG foam w/carbon
Production
Years built
First built 2004
Designer
Tony Castro
Builder
Dart Sailboats

Boats like this, on the water

Nobody has filmed this one — but these are close.

Comparable boats the fleet has on camera: same type, within a quarter of her length. Open the boat, or watch the video — a timestamp means she only appears in passing.

RS 216.40 mSame hull family0.3 m longer
Training Sea Cadet Instructors | RS21 Keelboat Sailing – Welsh Harp1:37from City Sailing
Microtonner 195.50 mSame hull family0.7 m shorterA high-performance fractional sloop designed by Nestor Volker to the International Micro Class rule for competitive racing
I Met the Man Who Puts Sailboats Inside the São Francisco River | #SAL #4256:23from Hashtag Sal
Dufour Yachts T66.15 mSame hull familyNear-identical lengthA lightweight 800kg fractional sloop with a high sail-area-to-displacement ratio for spirited performance in light air
Who I am and why the sea is part of my life0:56from NAUTICPIOLI
Melges 247.32 mSame hull family1.2 m longerA 7.32-metre sportboat with a lifting keel and a 32.09 sail-area-to-displacement ratio built for rapid planing
Per Christian Bordal in Peiling på Seiling: – We must recruit more than just our own children14:42from SEILmagasinet
Catalina Yachts 227.26 mSame hull family1.1 m longerA prolific masthead sloop with 15,000 built, offering a versatile swing-keel design for trailerable coastal cruising
The ZERO KEEL and ALPHA RUDDER - Are Kraken Yachts Really THAT GOOD?9:27from Practical Sailor
O'day 226.61 mSame hull family0.5 m longerA prolific production success with over 3,000 hulls built, offering a nimble fractional rig for coastal daysailing
Why TODAY Is the Best Time to Buy a 22-Foot Sailboat2:24from Lady K Sailing

The family

Boats like this

Nearby designs by size, type, and era — worth a look alongside her.

Dart 16 RaceAn upgraded 4.8-metre catamaran featuring a larger mainsail, gennaker, and double trapeze for high-speed racingDart Sailboats 16A Yves Loday-designed catamaran with a rotating fractional rig, built for high-performance, boardless sailing

Keep looking

Nothing filmed of this one yet

Two ways to keep looking — both search what the fleet has actually recorded.

Search the fleet for boats like thisAsk the fleet about the Dart Sailboats Sb20

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